E2E test: remove airborne from plan ee api tests
What does this MR do and why?
Removes the usage of airborne from ee plan tests. This is to prevent confusion over whether to use airborne or Support::API. When we have both and we aren't explicit, it can lead to issues when the wrong module is invoked. e.g:
Partially resolves gitlab-org/quality/quality-engineering/team-tasks#1115 (closed)
I've also been explicit when using Support::API for requests.
How to set up and validate locally
QA_LOG_LEVEL=DEBUG QA_GITLAB_URL=https://gdk.test:3443 GITLAB_QA_PASSWORD_1=1p bundle exec rspec qa/specs/features/ee/api/2_plan/epics_milestone_dates_spec.rb
See !163582 (comment 2075809309) for verification of qa/specs/features/ee/api/2_plan/epics_to_work_items_sync_spec.rb
Edited by Jay McCure